ἀπαράμιλλος
From LSJ
οὐκ ἂν λάβοις παρὰ τοῦ μὴ ἔχοντος → you can't take from one who doesn't have, you can't squeeze blood out of a turnip, you can't get blood out of a turnip, you can't get blood from a stone, you can't get blood out of a stone
Greek (Liddell-Scott)
ἀπαράμιλλος: -ον, (ἅμιλλα) = τῷ προηγ., Εὐστ. Πονημάτια 208. 33. κτλ.
